NAME

       checker - SPARK Proof Checker

SYNOPSIS

       checker [OPTIONS] [FILE]

DESCRIPTION

       The  SPARK  Proof Checker can be used to discharge verification conditions produced by the
       Examiner (*.vcg), possibly simplified by the Simplifier (*.siv).  This command is  usually
       used when verification conditions cannot be discharged automatically by the Simplifier.

       By  default  checker  runs  in interactive mode.  It accepts commands from user and writes
       them into a cmd file (or other file specified by -command_log option).  This file  can  be
       used  later to run checker in batch mode (using option -execute).  Additionally, proof log
       is written into a plg file.

OPTIONS

       A summary of options is included below.  All options may be abbreviated  to  the  shortest
       unique prefix.

       -help  Show summary of options.

       -version
              Display version information.

       -plain Adopt a plain output style (e.g. no dates or version numbers).

       -overwrite_warning
              Confirmation needed to overwrite command or proof log files.

       -command_log=LOG_FILE
              Specify file name for the command log file.

       -proof_log=PLG_FILE
              Specify file name for the proof log file.

       -execute=LOG_FILE
              Execute a previously generated command log file.

       -resume
              Resume a previously saved session.

FILES

       /usr/share/spark/checker/rules/*
              Checker rules database.

SEE ALSO

       spark(1), sparksimp(1), spadesimp(1), pogs(1).

AUTHOR

       This  manual  page was written by Eugeniy Meshcheryakov <eugen@debian.org>, for the Debian
       project (and may be used by others).

                                           3 June 2011                                 checker(1)